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Katsuyuki MURAI

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Functional sheet
    • Patent number 11,409,025
    • Issue date Aug 9, 2022
    • Mitsubishi Gas Chemical Company, Inc.
    • Hideaki Kimura
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Synthetic resin laminate having photochromic properties and lens us...
    • Patent number 10,737,471
    • Issue date Aug 11, 2020
    • Mitsubishi Gas Chemical Company, Inc.
    • Katsuyuki Murai
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Optical film and optical laminate using same
    • Patent number 10,120,206
    • Issue date Nov 6, 2018
    • Nippon Kayaku Kabushiki Kaisha
    • Kouichi Tanaka
    • G02 - OPTICS
  • Information Patent Grant

    Plastic sheet
    • Patent number 7,567,381
    • Issue date Jul 28, 2009
    • Mitsubishi Gas Chemical Company, Inc.
    • Yukio Kokuzawa
    • G02 - OPTICS
  • Information Patent Grant

    Lens sheets for rear projection screens
    • Patent number 7,369,311
    • Issue date May 6, 2008
    • Mitsubishi Gas Chemical Company Inc
    • Yukio Kokuzawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Fresnel lens sheet and rear projection screen
    • Patent number 7,196,845
    • Issue date Mar 27, 2007
    • Mitsubishi Gas Chemical Company, Inc.
    • Yukio Kokuzawa
    • G02 - OPTICS
  • Information Patent Grant

    Multi-layer film
    • Patent number 5,955,180
    • Issue date Sep 21, 1999
    • Mitsubishi Gas Chemical Company, Inc.
    • Masahiro Harada
    • B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents